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Data-driven HR tools, people-centered insights

EFFECTIVENESS is a trusted partner in organizational development. We help businesses grow by identifying exactly which competencies, behaviors, and attitudes support – and which limit – success. Our strength lies in turning data into action: we diagnose, interpret, and design solutions that translate directly into measurable business value.

What We Do

  • Min project size
    $1,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    2 - 9
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2016
  • Languages

2 Languages that we service

  • Polish
  • English

2 Locations

  • Warszawa , Poland
  • Youngstown , OH

Select Focus Area
Corporate Training & Coaching Focus
Staffing Focus
Industries
Information technology
30%
Consumer products & services
25%
Financial services
15%
Business services
10%
Other industries
10%
Beauty
5%
Medical
5%
Clients
Midmarket ($10M - $1B)
55%
Enterprise (>$1B)
35%
Small Business (<$10M)
10%

Pricing Snapshot

Min. project size $1,000+
Avg. hourly rate $100 - $149 /hr
Rating for cost 4.9 /5

What Clients Have Said

EFFECTIVENESS INC offers competitive pricing with strong value for cost, consistently meeting client budgets. Clients report high satisfaction with deliverables, timely execution, and practical support, emphasizing the company's commitment to enhancing organizational capabilities through tailored assessments and training.

This summary is based on verified Clutch reviews.

Most Common Project Size

< $10,000 based on 7 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

EFFECTIVENESS INC Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 5.0
  • Cost 4.9
  • Willing to Refer 4.9

Top Mentions

Review Highlights

  • Constructive Feedback and Continuous Support

    EFFECTIVENESS INC provides ongoing advisory support, even after project completion. Clients value their practical solutions, real actions for improvement, and continuous engagement, which enhance business outcomes.

  • Improved Communication and Team Dynamics

    The use of DISC D3 insights by EFFECTIVENESS INC has led to better communication and collaboration within teams. Clients report improved management effectiveness and smoother cooperation with clear expectations and adapted communication styles.

  • Strong Project Management

    Clients highlight EFFECTIVENESS INC's structured and flexible project management. They deliver on time, maintain clear communication, and adapt to evolving needs. Their responsiveness and availability make them feel like partners rather than vendors.

  • Enhanced Recruitment Processes

    EFFECTIVENESS INC has significantly improved recruitment processes for clients by integrating psychometric assessments. This has led to better candidate evaluations, reduced turnover, and improved role fit, especially in IT and sales sectors.

  • High-Quality Training and Materials

    Clients praise the high quality of EFFECTIVENESS INC's training programs and materials. Their practical approach is designed for real-world application, combining modern tools with a deep understanding of people and organizations.

EFFECTIVENESS INC Reviews

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Corporate Training & Coaching for Medical Equipment Co

  • Corporate Training & Coaching HR Consulting
  • $10,000 to $49,999
  • Jan. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What truly differentiates the team is their exceptional availability and willingness to share expertise."

Mar 27, 2026
Training Manager, Reha Fund Sp zoo
Dorota Foryś
Verified
  • Medical
  • Warsaw, Poland
  • 51-200 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC provides psychometric assessment tools and expert guidance for a medical equipment company. The client's goal is to enable more data-driven decisions in recruitment and leadership development.

HR Consulting for Leadership Development Firm

  • HR Consulting
  • Resource Planning & Management
  • Confidential
  • Jan. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What impressed me the most about EFFECTIVENESS INC is their very practical approach to development."

Mar 26, 2026
Owner, FSD
Agnieszka Szczesna
Verified
  • Business services
  • Torun, Poland
  • 1-10 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC provides training and consulting services for a leadership development firm. They use the DISC D3 methodology to understand behavioral patterns and work with teams and leaders.

HR Consulting Services for Consulting Firm

  • HR Consulting
  • $50,000 to $199,999
  • Jan. 2017 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What impressed us most was their direct and reliable support whenever we needed it."

Mar 20, 2026
CEO, Saleswise Sp. z o.o.
Damian Feilhauer
Verified
  • Business services
  • Poznan, Poland
  • 1-10 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC has implemented a psychometric assessment tool for a consulting firm to provide data on interpersonal competencies. The goal is to make better recruitment decisions.

Training Services for Building Materials Manufacturing Co

  • Corporate Training & Coaching
  • Leadership & Executive Coaching
  • $10,000 to $49,999
  • Jan. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Coaches from EFFECTIVENESS INC are very professional, with deep insights and broad knowledge about business processes."

Mar 12, 2026
HR Director, H+H
Agnieszka Jaraczewska
Verified
  • Manufacturing
  • Poland
  • 501-1,000 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC provides training services for a building materials manufacturing company. The team has assessed and developed employee competencies using the DISC D3 methodology and provided sales training.

DISC D3 Customization for Recruitment Solutions Company

  • Corporate Training & Coaching HR Consulting Staffing
  • Career Consulting
    +3
  • Less than $10,000
  • Oct. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

“They’re top class!”

Sep 27, 2025
CEO & Founder, CANDIDFUTURE
Agnieszka Myśliwczyk
Verified
  • Other industries
  • Gdansk, Poland
  • 1-10 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC has customized and implemented DISC D3 competency assessments for a recruitment solutions firm. The team provides reports on behavioral styles, strengths, growth areas, and team fit.

Corporate Training & Coaching for Education Company

  • Business Consulting Corporate Training & Coaching Recruiting
  • Business Transformation Consulting
    +2
  • Less than $10,000
  • Jan. 2023 - July 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I would recommend their services to every company."

Jul 8, 2024
CEO, Academy of Language LLC
Katarzyna Murphy
Verified
  • Education
  • Warsaw, Poland
  • 11-50 Employees
  • Online Review
  • Verified

An education company hired EFFECTIVENESS INC for corporate training and coaching services. The team was responsible for taking the client through a leadership skills program and goal evaluation processes. 

Corporate Training for Real Estate Company

  • Corporate Training & Coaching HR Consulting Talent Representation
  • Employee Engagement
    +1
  • Less than $10,000
  • Apr. 2017 - Feb. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
4.5

"The greatest value was the ongoing merit-based support even after the project ended."

Feb 15, 2024
HR Manager, VINCI Facilities Polska Sp.z o.o.
Magdalena Wachnicka
Verified
  • Real estate
  • Warsaw, Poland
  • 201-500 Employees
  • Online Review
  • Verified

EFFECTIVENESS INC provided corporate training services for a real estate company. The scope included analysis of staff competencies and business performance management.

Showing 1-8 of 8 Reviews

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
8
Overall Review Rating
5
Source
Clutch
Last Updated
March 27, 2026

Business Entity

Business Entity Name EFFECTIVENESS Anna Sarnacka-Smith
Source Poland Central Statistical Office
Jurisdiction of Formation Poland
Date of Formation September 1, 2016
Status Active
Last Updated September 18, 2025
ID REGON: 365260304 NIP: 5432072090

Credit Report Results

International Credit Risk Assessment High Risk
Source Creditsafe
Last Updated September 18, 2025

*Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

Learn More About The Clutch Verification Process

Locations (2)

27 Rodziny Połanieckich WarszawaPoland 01-924

6 - 9

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Agnieszka Myśliwczyk

EFFECTIVENESS - Badania kompetencji

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Anna Sarnacka-Smith